MATLAB function to initialize and call the solve_sps2d function, which implements a 2-D solution of the nonlinear wave equation using a psuedospectral /staggered A-B method, including attenuation modeled with two relaxation mechanisms. This example demonstrates harmonic generation within a plane wave given a B/A parameter of 5.2. To increase the distance of propagation, scale the sample grid (num_axpts) by a factor(s) of 2.

ref ori attn\fit_kt.m
............\make_animation.m
............\solve_array.m
............\solve_phan.m
............\solve_sps2d.m
............\validate_attn.m
............\validate_nonlin.m
ref ori attn

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